For Mumbai telecom circle, Reliance JIO has been allocated 10 mobile Number series. These mobile number series are: - 9137, 9321, 9324, 9326, 9372, 8104, 8169, 8369, 7021 and 7977. Unless otherwise a consumer has opted for Mobile Number Portability (MNP), if his/her number starts with any of these series 9137, 9321, 9324, 9326, 9372, 8104, 8169, 8369, 7021 and 7977. then you can certainly say that the number belongs to Mumbai telecom circle and the telecom operator is Reliance JIO.

You can view the list of all mobile series of Reliance JIO in Mumbai below: